[1] He gained the title of 1st Viscount Monck in 1801 as a reward for voting for the Act of Union (1800).
He had already been created Baron Monck, of Ballytrammon in the County of Wexford, in 1797, also in the Peerage of Ireland.
That was the year Charles Monck (the grandfather of the 1st Viscount) married Angela Hitchcock, an heiress.
Building was not completed until 1830, the unduly long time occasioned by the 1798 rebellion.
To this family the estate passed, and their long association with the district is commemorated in such names as Monck Place, Royse Road, from the name of a family intermarried with the Moncks, Rathdown Road and Terrace, from the title of Earl of Rathdowne, enjoyed by one of the Viscounts Monck, and Charleville Road and Terrace and Enniskerry Road, from the name of their residence near Enniskerry, Co. Wicklow.He married in 1784 his cousin Anne Quin (or Quinn), the daughter of Henry Quin MD, of Dublin, by his wife Anne Monck, the first daughter of Charles Monck, of Grangegorman.